Allouez Water Hardness & Quality Report (2026)
Water Hardness
10.2 grains per gallon
Source
groundwater
pH Level
8.1
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
483 mg/L
Est. Daily Cost
$0.47
energy & soap waste
Source: USGS Water Quality Portal · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Allouez, your appliances are currently losing 23% efficiency due to mineral buildup.
| Appliance | In Allouez | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 3.8 yrs | 8.5 yrs | -55% |
| Washing Machine | 7.1 yrs | 12 yrs | -41% |
| Water Heater | 8.6 yrs | 15 yrs | -43% |
Regional Water Comparison
How Allouez compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Allouez, Wisconsin | 174.5 mg/L | 4.8 ppt | 🟠 Hard | groundwater |
| Green Bay, Wisconsin | 242 mg/L | 6.4 ppt | 🔴 Very Hard | groundwater |
| De Pere, Wisconsin | 273 mg/L | 7.1 ppt | 🔴 Very Hard | groundwater |
| Ashwaubenon, Wisconsin | 213 mg/L | 5.7 ppt | 🔴 Very Hard | groundwater |
| Howard, Wisconsin | 202 mg/L | 5.5 ppt | 🔴 Very Hard | groundwater |
National Benchmark
How Allouez compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Allouez | 174.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Allouez's Water Unique?
Local geology and source profile
Allouez, Wisconsin, in Brown County — a Brown County village adjacent to Green Bay and De Pere in northeast Wisconsin — receives its water from the Green Bay Water Utility, drawing from the Fox River or local reservoirs (Brown County) through the northeast Wisconsin distribution.
The moderately hard 174.5 mg/L hardness and TDS of 483 mg/L (TDS elevated relative to hardness — reflecting the Fox River-Green Bay supply's additional dissolved solids from the Green Bay-Fox River industrial-agricultural corridor) reflect the northeast Wisconsin Brown County Fox River supply's moderately hard dolomitic character. The Fox River at Brown County drains — Silurian Niagaran Dolomite (dolomitic — primary hardness contributor from the Niagara Escarpment), Ordovician Prairie du Chien Dolomite (dolomitic — secondary contributor), and Cambrian sandstone (insoluble).
At 174.5 mg/L, Allouez's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling is appropriate. The PFAS level of 4.8 ppt warrants a certified drinking water filter — the Brown County northeast Wisconsin Green Bay industrial corridor and the Fox River basin agricultural legacy contribute to Allouez's readings.
Geology & Source: Allouez in Brown County draws from the Green Bay Water Utility on Fern Lake or the Fox River (Brown County, northeast Wisconsin) — the Fox River at Brown County drains the Niagara Escarpment (Silurian Niagaran Dolomite — dolomitic) and Ordovician calcareous formations — Wisconsin Brown County Fox River Silurian dolomitic Niagara Escarpment watershed produces moderately hard water at 174.5 mg/L with TDS 483 mg/L.